 <style>
 html, body {
    height: 100%;
    margin: 0;
    padding: 0;
}
body {
    min-height: 100%;
    width: 780px;
    padding: 0 10px;
    margin: 0 auto;
    position: relative;
}
div#ideo {
    /* Pour éviter la superposition du pied de page et du contenu : */
    padding-bottom: 50px; 
    overflow: auto;
}
div#footer {
    position: absolute;
    width: 780px;
    bottom: 0;
    left: 10px;
    }
div#content {
    float: left;
    width: 530px;
}
div#sidebar {
    float: right;
    width: 200px;
}
 div#centre {
 padding-left: 50px;    
 padding-bottom: 50px;
 padding-right: 50px;
 padding-top: 50px;
 padding-bottom: 50px;
 margin-left: 50px;
 margin-right: 50px;
 margin-top: 50px;
 margin-bottom: 50px;
 overflow: auto;
 font-family:courier; 
 font-size:0.9em;
 leter-spacing:0.4pt;
 

}

  </style>

